Rust preventive slushing compound for cartridge clips



'inerusngo'i Patented Nov. 16,1948

siusnmo ron. cammen curs Hana Schindler, Evanston, and Paul LT.Anderson.

The Pure RUST PREVENTIVE mk ma mi pany. Uhioaxo.

.dei il :eine:

OilCom Ill., a corporation ofOliio No Drawing. Annulation Inl! 10, 19,Bel'il N0. 544,828

4 Cla'lml. (GL 10B-1Q) This invention relates to slushins oils and moreparticularly to slushinz oils suitable for preventmetal articles auch ascartridge clips, shells and other ordnance goods.

The object of this invention is to provide an ei'- tective rustpreventing alushing compound for Pal-herum" cartridse clips and otherordnance goods. 4 v y We have discovered that ahiehly eective rustpreventing smelling` compound can he prepared by saponlryln wool greasewith lltharse to make a lead wool grease soap havin'ga neutralizationnumber between 2.5-4 and 'preferably approximately 3 and mixing the leadwool grease roep with a iight lubricating oil and vrettiuiz agent and athinner in proper proportions.

Ordnance speclilcatiou for slashing compound for Parkeriredf cartrideeclips.

Percent by weicht Common wool grease I'LSA Litharge Diootyr ester ofeodium :culto-succinle 'In preparing our sllushini compound, ordinarywool grease, degres or lanolin is mixed with suicientlitharge to producea soap having a neutralization number of 2.5-4 when completed andpreferably around 3. The wool grease and the litharge are heated to etemperature o! approximately '350 F. for aperiod oi three hoursl withagitation in order to complete the saponlilcatio'n.

-'Ihe finished hot soap is mixed with a. low viscosity minerallubricating oil. preferably one having a viscosity vfrom Blite 150seconds Beybolt at 100' F; From 15 to 3l) parte by weight of. leadwoolgrease soap may he mixed with from te 5i)V parts by weight or thelubricating oil and these figures represent the percentages orA theseingredients in the ilnal composition. 4lil wetting aient such es dloctylester of sodium salio-succinio acid is added to the mixture in ispresent in the mixture to the extent of lv to 3%. Any higher alcoholester o! an alkali metal sulfo-succinlo acid may he used in place oi thedioctyl ester and preferably esters of alcohols having from 8 to 18carbon atoms in the molecule.

'I'he composition, made as above described, has e semi-solid or greasytexture. This material is thinned with a nvdrocarbon solvent having aboiling range up to about 400 F.. such as Stoddard solvent, to theextent desired which will depend on the thiclmess oi the film requiredon the coated object. Any light hydrocarbon solvent having a flash pointabove 100 F. may be used.

The following composition prepared in accordance with our inventionpassed the United States amounts suoli that it The slushine oli isgenerally applied to the ob'- 'runnins the obie'cte in the to removeexcess semi-solid against rusting.

Although in the iormula above let forth the amount of Stoddard solventis 28.1%, the amount of solvent may be more or lesb, depending on thethickness ot the film it is desired to leave on the coated object. Wherea heavy film is desired, the amounto the solvent is low. wher- 6 l"light nlm is desired. the ammint o! the solvent-lebten.

By following the procedure abovej';eet"forth in the preparation ot thecompound. onli by adherins to the quantities of the eeverallnsredientspreviously ect forth. a ueetul and edective slashing oil is produced.

We claim:

l. A sluehing oil composition consisting of from 1li-30% by weichtoflead-wool crease soap having a neutralization number of about 3. tromSil-50% by weiaht oi mineral oil having a vlecoaiw at F, of from 0to 150seconds Saybolt, from l-8% by `weight ot a higher'alcohol ester oi' analkali metal eulfo-succinic acid and the balance a low-boilinghydrocarbon liquid having a ilnsh point 0l' at lestlDO P.

2. A siushing oli in accordance withyclahn 1 in which the este: lsdlootyi eater o: sodium sono suceinic acid and the low-boilinghydrocarbon is Stoddard solvent.

3. A slushins oll consisting of. the following substances inapproximately the following parte by weight: wool grease-17.3:inname-3.5: dioetyl ester of sodium sulfo-succioie acid- 2; Pennsylvanianeutral mineral oil having a viscosity of 100 seconds Saybolt at 100lip-49.1; Stod- 3 dard solvent-28.1, and in which the litharge and woolgrease are combined to funn o. iead-woo1 grease soap having a.neutralization number of about 3.

4. A siushing oil consisting o! 30 to 50 per cent by weight of lightmineral lubricating oil, 15 to 30 per cent by weight of lead-wool greasesoap having a. neutralization number of about 3, from 1-3 per cent byweight of av higher alcohol ester cf an alkali metal suifo-succininacid, and the balance a low-boillnkhydmarbogiiquid HANS SCHINDLER. PAULT. ANDERSON.

REFERENCES m2.-

The followingr references are of record llx'xjthe nie of this patent:

Nuinber 4 UNITED STATES PATENTS Name Date Ekenberg Mar. 14, 1899 MorganJan. 4, 1941 Waugh Feb. 15. 1944 Adams et al May 16, 1944 Wachter Aug.29. 1944 Ruedrich Jan. 1. 1946 Kollen et al Mar. 25. 1947FQREIGNPATEN'IS 'Cfolmty Date Great Britain May 18, 1921 Great BritainJune 14, 1939

